Sen. Mike Lee (R-Utah), a member of the Senate Tea Party Caucus, said he
would insist that any compromise receive at least 60 votes on the
Senate floor but not drag out the process to delay an agreement beyond
Tuesday.

Reid is expected to use a message from the House as the legislative vehicle to pass a deal through the upper chamber.

But doing so would still require the Senate to spend Monday, Tuesday and part of Wednesday processing it unless every senator agrees to truncate the timeline.

A stopgap measure may be necessary to allow the government to pay its bills after Aug. 2. But such a Band-Aid would need to receive unanimous consent to pass by Tuesday.